FR2144854B1 - - Google Patents

Info

Publication number
FR2144854B1
FR2144854B1 FR7224556A FR7224556A FR2144854B1 FR 2144854 B1 FR2144854 B1 FR 2144854B1 FR 7224556 A FR7224556 A FR 7224556A FR 7224556 A FR7224556 A FR 7224556A FR 2144854 B1 FR2144854 B1 FR 2144854B1
Authority
FR
France
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR7224556A
Other languages
French (fr)
Other versions
FR2144854A1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xerox Corp
Original Assignee
Xerox Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xerox Corp filed Critical Xerox Corp
Publication of FR2144854A1 publication Critical patent/FR2144854A1/fr
Application granted granted Critical
Publication of FR2144854B1 publication Critical patent/FR2144854B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/10—Developers with toner particles characterised by carrier particles
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/10—Developers with toner particles characterised by carrier particles
    • G03G9/107—Developers with toner particles characterised by carrier particles having magnetic components
    • G03G9/108—Ferrite carrier, e.g. magnetite
    • G03G9/1085—Ferrite carrier, e.g. magnetite with non-ferrous metal oxide, e.g. MgO-Fe2O3
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/10—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
    • H01F1/11—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure in the form of particles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
    • H01F1/36—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites in the form of particles

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Compounds Of Iron (AREA)
  • Soft Magnetic Materials (AREA)
  • Magnetic Ceramics (AREA)
  • Developing Agents For Electrophotography (AREA)
FR7224556A 1971-07-08 1972-07-06 Expired FR2144854B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16089371A 1971-07-08 1971-07-08

Publications (2)

Publication Number Publication Date
FR2144854A1 FR2144854A1 (en) 1973-02-16
FR2144854B1 true FR2144854B1 (en) 1980-04-18

Family

ID=22578913

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7224556A Expired FR2144854B1 (en) 1971-07-08 1972-07-06

Country Status (12)

Country Link
JP (1) JPS5315040B1 (en)
AR (1) AR194244A1 (en)
AU (1) AU471676B2 (en)
BE (1) BE785913A (en)
BR (1) BR7204270D0 (en)
CA (1) CA1000477A (en)
DE (1) DE2224150A1 (en)
ES (1) ES404423A1 (en)
FR (1) FR2144854B1 (en)
GB (1) GB1398871A (en)
IT (1) IT962400B (en)
NL (1) NL174408C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6090345A (en) * 1983-10-24 1985-05-21 Fuji Xerox Co Ltd Developer carrier for electrophotographic copying machine
WO2007111793A2 (en) * 2006-02-17 2007-10-04 Steward Advanced Materials, Inc. Low velocity oxygen-fueled flame spray method and apparatus for making ferrite material products and products produced thereby
CN103011793A (en) * 2012-12-27 2013-04-03 中南大学 Method for preparing nickel-zinc ferrite by using microwave technology
CN112374879B (en) * 2020-11-12 2022-12-23 南通三优佳磁业有限公司 Preparation method of anti-electromagnetic interference manganese-zinc ferrite material
CN113956029A (en) * 2021-11-25 2022-01-21 湖南航天磁电科技有限公司 Method for reducing shrinkage rate of permanent magnetic ferrite material

Also Published As

Publication number Publication date
AU4437072A (en) 1974-01-10
IT962400B (en) 1973-12-20
CA1000477A (en) 1976-11-30
JPS5315040B1 (en) 1978-05-22
AU471676B2 (en) 1976-04-29
NL174408C (en) 1984-06-01
BR7204270D0 (en) 1973-06-12
DE2224150A1 (en) 1973-01-25
NL7209525A (en) 1973-01-10
FR2144854A1 (en) 1973-02-16
NL174408B (en) 1984-01-02
ES404423A1 (en) 1975-06-01
AR194244A1 (en) 1973-06-29
GB1398871A (en) 1975-06-25
BE785913A (en) 1973-01-08

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Legal Events

Date Code Title Description
DR Decision of the appeal court due to an appeal at law against decisions of the director of the inpi, except decision of lapse